/* VARIABLES DE AJAX */
var http_request 	= false;
var g_obj_combo 	= false;
var g_elemnto_cero 	= '-- Selecciones una opcion --';
var g_index_value 	= '';
var array_nombre 	= new Array();
var array_id 		= new Array();
//var web_raiz		= 'http://www.integraldoors.com.ar/';
var web_raiz		= 'http://srv:3207/';
//var web_raiz		= 'http://crossingnet.no-ip.org:3155/';

/*-- APLICACION AJAX --*/
function makeRequest(url, parameters){
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/xml');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!http_request) {
		alert('Cannot create XMLHTTP instance');
		return false;
	}
//alert(url + parameters);
//window.open(url + parameters,"ventana1","width=500, height=350, scrollbars=no, menubar=no, location=no, resizable=no") ;
	http_request.onreadystatechange = alertContents;
	http_request.open('GET', url + parameters, true);
	http_request.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	http_request.send(null);
}

function alertContents(){
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			var i =0;
			array_nombre = new Array();
			array_id = new Array();
			var xmldoc = http_request.responseXML;
			var root = xmldoc.getElementsByTagName('registro');
			array_id[0]     = '0';
			array_nombre[0] = g_elemnto_cero;
			//verifico que no devuelva vacio
			if(root.length==1){
				array_id[0]     = '0';
				array_nombre[0] = '-- Respuesta vacia --';
			}else{
				for (i=1; i<root.length; i++){
					var root_id = root[i].getElementsByTagName('campoid');
					var root_nombre = root[i].getElementsByTagName('camponombre');
					array_id[i] = root_id[0].firstChild.nodeValue;
					array_nombre[i] = root_nombre[0].firstChild.nodeValue;
				}
			}
			CargaCombo(g_obj_combo);
		} else {
			alert('There was a problem with the request.');
		}
	}
}

function CargaCombo(combo_name){
	var i=0;
	if(combo_name.options.length!=null){
		for (i=combo_name.options.length;i>=0;i--){
			combo_name.options[i] = null;
		}
	}
	for (i=0;i<array_nombre.length;i++) 
		combo_name.options[i] = new Option(array_nombre[i], array_id[i]); 
	combo_name.value = 0;
	http_request = false;
}

function LimpiaCombo(combo_name,texto){
	var i=0;
	if(texto==null) texto='-- No hay opciones disponibles --';
	if(combo_name.options.length!=null){
		for (i=combo_name.options.length;i>=0;i--){
			combo_name.options[i] = null;
		}
	}
	
	combo_name.options[0] = new Option(texto,'0'); 
}